<!DOCTYPE html>
<html lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html" ; charset="UTF-8">
    <title>Insert title here</title>
</head>
<body>
<form action="/ServletRequestParams" method="post">
    用户名：<input type="text" name="username"><br/>
    密码：<input type="password" name="password">
    <br/>

    爱好：
    <input type="checkbox" name="hobby" value="唱歌">唱歌
    <input type="checkbox" name="hobby" value="跳舞">跳舞
    <input type="checkbox" name="hobby" value="画画">画画
    <input type="checkbox" name="hobby" value="篮球">篮球<br />
    <input type="submit" value="提交">
</form>
</body>
</html>